react-ux-forms

react-ux-forms is a style and component agnostic <Form/> React.Component which handles the user feedback and validation in a UX oriented, less disturbing way.

Why would you even bother reading this README.md further?

react-ux-forms starts with the basic features you need:

• It's style agnostic from the ground up, meaning that you can use your own components for inputs, buttons and sections of the Form.
• It's validation approach is tested in many projects and turned out the be the less frustrating one for users.
• Validators are configured in the same structure as you might know it from the webpack@2 rules config property.
• Form actions (buttons) are simple to configure and come with predefined behavior to avoid form submissions with fatal validation errors.
• Basic feedback props like onChange and onSubmit.

it also supports many advanced features:

• Smooth integration with state containers such as redux.
• Advanced callback props for several internal events such as onValidate, onInValidate and onSubmitFailed.
• You can add n rules to each property of the Form and even introduce your own types / severity.
• You decide the priority of each rule based on the index in the rules array.
• Each rule can be triggered by either a Function or a RegExp.
• Extendable in every way - Props on React elements and properties of each rule get propagated to the Components you specify via the props of the <Form/> Component.

Installation

# fancy-pantsy yarn
yarn add react-ux-forms

# or npm
npm i -S react-ux-forms

Examples

The following example is a simple single-column form with a custom TextInput, Button and ValidationMessage component. For the full example and even more advanced ones, checkout the examples/ folder.

Don't miss out on the API description further down below!

import React from 'react';
import Form from 'react-ux-forms';
 
export default props => {
    const {values, properties, onSubmit, onChange} = this.props;
 
    return (
        <Form
            ActionComponent={MyButton}
            ValidationMessageComponent={MyValidationMessage}
 
            actions={myActions}
            rulesById={myRulesByPropertyId}
            valuesById={values}
 
            onChange={onChange}
            onSubmit={onSubmit}
            >
            {properties.map((props, i) => (
                <Form.Item
                    {...props}
                    key={i}
                    value={values[props.id]}
                    />
            ))}
        </Form>
    );
};

API

<Form/>

props.ActionComponent

The Component that gets rendered for each action below the <form/>. The component recieves the full action object as it's props, so you are free to extend it at any point. The only restriction is that you have to provide a type which equals either submit, reset or button, this is not only reasonable for semantics, but is also a pointer for the <Form/> to attach a predefined onClick handler to it.

Actions of type submit will trigger the onSubmit prop of the <Form/> only after a full validation for all rules was executed and if no rule with the severity error is passing its test. Actions of type reset will trigger the onChange prop of the <Form/> for each key of the valuesById prop with an second argument of undefined.

props.ValidationMessageComponent

The React.Component that gets rendered for each validation message. The component recieves the full object of the passing rule, except for the test, since we haven't found a usecase for it in the ValidationMessageComponent as of now - Wanna change that? Open a issue and lets talk about it :)

The ValidationMessageComponent also recieves an isValid prop, on which you can decide to render it if it equals false or hide it / return null if it equals true.

props.actions

You can define n actions, as described on top, all properties get forwarded to the ActionComponent. An example would be:

const actions = [{
    type: 'submit',
    children: 'You better submit dat form'
}];

props.rulesById

The rules for each property of your form referenced by it's id. The structure is inspired by the webpack@2 configuration, since most React developers should be familiar with it. A rule gets triggered/activated if either it's test property that can be a Function or RegExp returns a truthy value, or if the rule object contains a truthy forced property. An example would be:

const rulesByPropertyId = {
    email: [{
        test: /^(([^<>()\[\]\\.,;:\s@"]+(\.[^<>()\[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/,
        message: 'Awesome, you have entered a valid email address.',
        severity: 'success'
    }]
};

props.valuesById

The values for each property of your form referenced by it's id. An example would be:

const valuesById = {
    email: '[e-mail]'
};

props.onValidate

A handler that gets called once a property got succcessfully validated (Meaning that no rule with the severity of error is triggered). It's getting called with the id of the validated property.

props.onInValidate

A handler that gets called once a property failed the validation (Meaning that at least one rule with the severity of error is triggered). It's getting called with the id of the invalid property.

props.onChange

A handler that gets called after your target component triggers the onChange prop and the validation was executed.

props.onSubmit

A handler that gets called after the user clicked on an action component with a type of submit and the validation succeeded.

props.onSubmitFailed

A handler that gets called after the user clicked on an action component with a type of submit and the validation failed. It's only argument is the internal validationResultsById object, on which you can render additional warnings if you want to.

props.itemWrapperProps

An optional props object that gets forwarded to each wrapping <div/> of a <Form.Item/>.

props.actionsWrapperProps

An optional props object that gets forwarded to the wrapping <div/> of all form actions. Defaults to {style: {textAlign: 'right'}}.

props.onChangeValidationIds

If your <Form.Item/> target component does not support the onBlur prop (e.g. CheckBoxes), or if you want to display the validations as soon as the user changes a value even initially, pass in an array of ID's as this prop.

props.children

The React elements that get recursively traversed and rendered. Note that you should keep the depth as small as possible to avoid performance problems, we do NOT use the cloneElement() API of React but we still want you to keep it in mind that there might be performance implications for really large forms. If you expirience such issues, please submit an issue or PR so that we can work on it and improve this world for the better.

<Form.Item/>

The <Form.Item/> component is the second pillar of this package. Use it to express your form items, note that props like onChange and onBlur are overridden internally, use the onChange on the <Form/> instead.

props.Component

The component that gets rendered, any additional props to the <Form.Item/> will getpropagated to the specified component.

props.id

The identifier under which the <Form/> will lookup the value and rules.

props.invalidPropName

The prop name which will be used to propagate an additional prop to your target component that indicates if the validation result is fatal (error) or not. If you don't want this prop to be specified at all, pass in either null, false, undefined or an empty string.

<Form.Section/>

Use the <Form.Section/> component if you want to structure your Form using grids or boxes, note that this component will just render your specified Component, no additional HTML. We introduced this component to keep the recursive lookup for <Form.Item/>'s as small as possible.

props.Component

The component that gets rendered, any additional props to the <Form.Item/> will get propagated to the specified component.

Contributing

Releases

Releases are automatically triggered by each CI build depending on the commit message. Take a look at https://github.com/Inkdpixels/commit-analyzer for a full list of commit tags and the corresponding release type.

License

MIT - See the current LICENSE.md.